'''Euclid''' (; , ''Eukleidēs'' ; floruit|fl.
300 BCE), sometimes called '''Euclid of Alexandria''' to distinguish him from Euclides of Megara
, was a Greek mathematics|Greek mathematician
, often referred to as the "father of geometry". He was active in Alexandria
during the reign of Ptolemy I|Ptolemy I
(323–283 BCE). His ''Euclid's Elements|Elements
'' is one of the most influential works in the history of mathematics
, serving as the main textbook for teaching mathematics
) from the time of its publication until the late 19th or early 20th century.
[Ball, pp. 50–62.] [Boyer, pp. 100–19.] [Macardle, et al. (2008). ''Scientists: Extraordinary People Who Altered the Course of History.'' New York: Metro Books. g. 12.]
In the ''Elements'', Euclid deduced the principles of what is now called Euclidean geometry
from a small set of axiom
s. Euclid also...